Inventor
HARTMANN HANS-JOERG
DE13 patents
⚠️ This page may combine multiple inventors who share the name “HARTMANN HANS-JOERG”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
BASF AG
12 patentsUS4320171AMar 16, 1982
Magnetic recording media containing elastomeric polyurethane binders in the magnetic coating
BASF AG22 citations80
US3959553AMay 25, 1976
Magnetic discs having metal support and a non-magnetic layer
BASF AG20 citations80
US4152484AMay 1, 1979
Magnetic recording media
BASF AG8 citations73
US4091143AMay 23, 1978
Magnetic recording media
BASF AG8 citations73
US4005242AJan 25, 1977
Magnetic recording medium containing lubricants
BASF AG15 citations73
US4058646ANov 15, 1977
Magnetic recording media containing elastomeric polyurethane binders in the magnetic coating
BASF AG18 citations72
US4048375ASep 13, 1977
Magnetic recording media of improved mechanical resistance
BASF AG7 citations72
US4046932ASep 6, 1977
Magnetic recording discs
BASF AG8 citations72
US3995089ANov 30, 1976
Magnetic recording media
BASF AG10 citations72
US4000336ADec 28, 1976
Production of magnetic recording media
BASF AG3 citations62
US4357378ANov 2, 1982
Magnetic recording media
BASF AG4 citations61
US4180597ADec 25, 1979
Manufacture of magnetic recording media
BASF AG1 citations50